SPEAR-09-H022_06 datasheet(21/71 Pages) STMICROELECTRONICS

21 / 71 page

SPEAR-09-H022

Pin description

21/71

Ethernet

MDC

M19

Output

Output timing reference for MDIO

TTL bidirectional

buffer,

3.3 V capable,

4 mA drive capability,

with Pull Down

MDIO

M20

I/O

I/O data to PHY

GPI/Os

GP_IO[0]

R22

I/O

General Purpose IO

TTL bidirectional

buffer,

3.3 V capable,

8 mA drive capability

GP_IO[1]

R21

GP_IO[2]

R20

GP_IO[3]

R19

GP_IO[4]

P22

GP_IO[5]

P21

I²C

SDA

M21

I/O

I2C serial data

TTL bidirectional

buffer,

3.3 V capable,

4 mA drive capability,

with Pull Up

SCL

M22

JTAG

TDO

A21

Output

Jtag TDO

TTL bidirectional

buffer,

3.3 V capable,

4 mA drive capability

TDI

A22

Input

Jtag TDI

TTL bidirectional

buffer,

3.3 V capable,

4 mA drive capability,

with Pull Up

TMS

B20

Input

Jtag TMS

RTCK

B22

Output

Jtag output clock

TCK

C21

Input

Jtag clock

nTRST

C22

Output

Jtag reset

MASTER

CLOCK

MCLK_in

Input

12 MHz input crystal

Oscillator

3.3 V capable

MCLK_out

Output

12 MHz output crystal

MASTER

RESET

MRESET

Input

Master reset

TTL Schmitt trigger

input buffer,

3.3 V capable

MPMC

MPMCDATA[0]

AA12

I/O

DDR / SDRAM data

LVTTL / SSTL

ClassII bidirectional

buffer

MPMCDATA[1]

Y12

MPMCDATA[2]

W12

MPMCDATA[3]

AB13

MPMCDATA[4]

AA13

MPMCDATA[5]

Y13

Table 1.

Pin description by functional groups (continued)

Group

Signal Name

Ball

Direction

Function

Pin Type

SPEAR-09-H022 Datasheet(PDF) 21 Page - STMicroelectronics

SPEAR-09-H022 Datasheet(HTML) 21 Page - STMicroelectronics

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